Steam-muffler



(No Model.) 2 Sheets-Sheet 1.

' G. E. HEALY.

STEAM MUFFLER.

No. 449,120. Patented Mar. 31, 1891.

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1 NORRIS PETERS c (No Model.) 2 Sheets-'Sheet 2.

GQRHBALY.

STEAM MUFFLER.

No. 449,120. Patented Mar. 31, 1891. i

- as wrought iron or copper.

' UNTTED STATES PATENT OEEieE.

CALEB E. HEALY, OF NE\V LONDON, Ol'IIO.

STEAM-MUFFLER.

SPECIFICATION forming part of Letters Patent No. 449,120, dated March 31, 1891. Application filed October 15 1890. Serial No. 368,167. (No model.)

To all whom it may concern.-

Be it known that I, CALEB E. HEALY, a citi zen of the United States, and a residentof New London, county of Huron, State of Ohio, have invented certain new and useful Improvements in Steam-Mufflers, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in steam-mufflers; and its objects are to provide mechanism whereby the objectionable noise of steam escaping under pressure and the appearance of the volume of expanding steam may be avoided to such a degree as to permit the use of the engine for traction and public conveyance upon crowded thoroughfares and in othersituations where an engine would otherwise be objectionable. It is especially for streetcar service.

My improved apparatus is especially designed for light engines, but may also be adapted toa heavier construction and greater power, if desired.

My invention consists in the form of apparatus, manner and details of construction, and arrangements of the various parts, as will be hereinafter described, shown in the accompanying drawings, and more specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical central section of my apparatus applied to a vertical boiler having. immersed fines, the boiler being also in central vertical section, the connections being shown with the steam-chest of a horizontal engine. Fig. 2 is a plan view of the top of the boiler. Fig. 3 is a transverse section of vertical exhaustchambers on line a a, Fig. 1. Fig. 4 shows a similar arrangement with diagonal pipes, and Fig. 5 a detail.

In the drawings, A is the end elevation of a horizontal engine provided with the steam admission pipe B, which is connected with the top of the boiler G.

B is the exhaust-pipe, which is turned upward at its free extremity b so as to project for some distance into the sealed and enlarged chamber 0, made preferably of heavy metal,

This chamber receives the pulsating steam and effectually absorbs the vibrations arising therefrom, while the moist and heavy particles are at once condensed by contact with the walls of the exposed chamber, and, settling in thebottom at O, fiowoutat the draining-tube cinto the ash-pit or into any other available place for discharge. In the meantime the lighter and more vaporous particles pass out of the steam-passage 0 into the second pipe D, which is provided with the partitions d at intervals, so perforated at d as to compel the current of dry steam to ascend in a zigzag or irregular course, as indicated by arrows, and, being thus arrested and its direction altered in its course, any remaining pulsation is obviated and any moisture left over from the chamber 0 is discharged, and, falling to the closed bottom, passes out the draining-pipe (F. It is not desirable that any condensation should occur in this tube. For this reason D, the spacev between the two pipes being filled, if desired, with some non-conducting material, as asbestus. Onlythe most rarefied and vaporous steam, therefore, will pass out of the pipe D at its upper end, and it is then conveyed in its driest form through the pipe E into the upper portion of the boiler F, where the pipe terminates in a horizontal coil E directly in the path of the heated current arising from the immersed fines II, which completely envelope the coil. The current at this position is in the hottest condition in which it leaves the boiler, and in order to completely commingle this heated current with the steam in its superheated state perforations 6' are made entirely around the coiled pipe E and at such an angle (preferably at forty-five degrees) as to most thoroughly unite and flues II. The additional and extreme heat thus obtained is sufficient to completely consume all these vapors while finely disseminated before they are driven by theblast out of the chimney, and with small engines and the construction shown no visible residue appears.

In order that steam may not escape with the condensed moisture discharged through the pipes c and d globe-valves, as a; and y, are inserted in the pipes, which are set with the required opening necessary to release the an inclosing jacket D is sleeved over the pipe the escaping vapors from the steam-pipe E I water with any given pressure and use of steam while running, and need only be disturbed when the several conditions are changed.

I do not limit myself to the exact number of pipes as shown, nor to their arrangement with a vertical boiler, since where a greater volume of steam is used a greater variety and number of pipes would be necessary; also, the same apparatus would be applicable to a horizontal or other form of boiler, provided that the vent-coil E were disposed directly in front of the boiler-fines, as in Fig. 1. In case of a horizontal boiler this coil would be arranged vertically, but would have the same effect upon the steam.

In Figs. 1- and 5 are shown a modified ar- I rangement in which the chambers C and D are placed diagonally and adapted to occupy the space underneath the seat of a streetcar or dummy, the draining-tubes (Z and 0' being placed at the lower level of the chambers and the chamber D with its jacket D being placed, as at Fig. 5, (which is a vertical section on line .2, Fig. i) so as to bring the openings (1 in the partitions d on either side of the chamber and permit a free flow of the condensed moisture to the draining-tube (P. I do not, therefore, claim as my invention any specific position or location of parts comprising my complete device.

It will readily be seen from Fig. L that this device is well adapted to warming one or more cars by properly continuing the pipes, or by j acketing them they may be prevented from giving out any heat in summer.

Having described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

l. Mechanism for absorbing and consuming exhaust-steam from an engine, consisting of the enlarged con(lensing-chamber 0, provided with the discharge-pipe c, the jacketed chamber 1), provided with connecting and discharge pipes 0, (Z and E, in combination with the superheating and perforated coil E, arranged to operate substantially as described.

2. In means for condensing, superheating, and consuming exhaust-steam, a condensingchamber 0, an exhaust-pipe extending into this chamber, a drain-pipe c, a steam-connection with a jacketed chamber D, perforated partitions with openings arranged on alternate sides of the jacketed chamber, a vent exhaustpipe leading from this chamber, and a perforated coil extending from this pipe and situated in close juxtaposition to the mouths of the boiler-Hues, substantially as described.

CALEB E. lIEALY.

\Vitnesses:

WM. M. MONROE, FRANKLIN Ii. Moons. 

